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PDF NJM2387 Data sheet ( Hoja de datos )
| Número de pieza | NJM2387 | |
| Descripción | (NJM2387 / NJM2389) ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2387 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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NJM2387/89
ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2387/89 are adjustable low dropout voltage regulators .
The output current is up to 1.0A and dropout voltage is 0.2V typ. at
Io=0.5A. NJM2387 has ON/OFF control circuit and enable to
reduce quiescent current.
The NJM2387/89 is suitable for power module, TV, Display, car
stereo and low power applications.
PACKAGE OUTLINE
NJM2387DL2 NJM2387DL3 NJM2389F
FEATURE
Low Dropout Voltage
Output Current
∆VI-O=0.2V typ. at Io=0.5A
Io(max.)=1.0A
Reference Voltage
Vref=1.26V ± 2%
ON/OFF Control
(Active High : Only NJM2387)
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
TO-252-5(NJM2387), TO-220F-4(NJM2389)
PIN CONFIGURATION
3
12 3 4 5
NJM2387DL2
3 PIN FUNCTION
1.VIN
2.ON/OFF CONTROL
12 3 4 5
3.VOUT
4.VADJ
5.GND
NJM2387DL3
EQUIVALENT CIRCUIT
PIN FUNCTION
1. VIN
2. VOUT
3. GND
4. VADJ
12 3 4
NJM2389F
VIN
VOUT VIN
VOUT
Control
GND
Bandgap
Reference
ON/OFF
control
Over Voltage
Protection
Thermal Over Current
Protection Protection
NJM2387DL2/DL3
VADJ
GND
Bandgap
Reference
Over Voltage
Protection
Thermal Over Current
Protection Protection
VADJ
NJM2389F
Ver.2004-12-22
-1-
1 page  
TEST CIRCUIT
NJM2387/89
VIN NJM2389 VOUT
R2
GND
VADJ
A Io
VIN +
0.33µF
IQ A
Vref V
+
R1 22µF
1kΩ
V Vo
RL
Vo = Vref × (1 + R2/R1)
Ver.2004-12-22
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJM2387.PDF ] | |
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